Quote:
Originally Posted by PN14
... my zt cdti will idle normally if the aircon is off however if the car is left idle and aircon is on the idle is rough ...
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Paul,
Check the crankshaft pulley. On the diesel the multi-layer construction is prone to weaken and eventually fail. It could be that the extra load of the air conditioning compressor is putting additional stress on the pulley and affecting the idle.
Simon
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Sir Henry Royce.
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